Hi Please clarify, What is the version of OS (Operating system) you use? Please let us know the version of McAfee program installed in the computer (Open the McAfee security center-> click on about in the left had bottom of the security center panel)?Steps Reset the McAfee firewall to default. (Click on internet and network –click on configure in the right had panel –click on advance button under the firewall protection is enabled –click on restore firewall)